Annual report pursuant to Section 13 and 15(d)

Mortgage Notes Payable and Credit Facility - Mortgage Notes Payable (Detail)

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Mortgage Notes Payable and Credit Facility - Mortgage Notes Payable (Detail)
$ in Thousands
12 Months Ended
Jan. 22, 2021
USD ($)
property
Oct. 27, 2017
Dec. 31, 2021
USD ($)
property
Dec. 31, 2020
USD ($)
property
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]          
Debt repaid | $     $ 28,470 $ 50,662 $ 57,438
Interest Rate on Fixed Rate Debt     3.39%    
Number of properties acquired     11 9  
Fixed rate mortgage loans          
Debt Instrument [Line Items]          
Number of mortgages repaid     3    
Number of properties collateralized     3    
Debt repaid | $     $ 7,669    
Stated interest rate     4.91%    
Variable rate mortgage loans          
Debt Instrument [Line Items]          
Debt repaid | $     $ 7,500    
New fixed rate mortgage notes payable          
Debt Instrument [Line Items]          
Number of long-term mortgages issued     2    
Number of properties to issue collateralized mortgage notes payable     2    
Fixed Rate Debt Issued | $ $ 5,500   $ 21,500    
Interest Rate on Fixed Rate Debt     3.36%    
Stated interest rate 3.24%        
Number of properties acquired 1        
LIBOR          
Debt Instrument [Line Items]          
Interest Rate on Variable Rate Debt Repaid   2.75%      
LIBOR | Variable rate mortgage loans          
Debt Instrument [Line Items]          
Interest Rate on Variable Rate Debt Repaid     2.50%